Towel rack



FIG. 1 is a top perspective view of a towel rack showing my new design;

FIG. 2 is an enlarged right end elevational view thereof, the left end being a mirror image;

FIG. 3 is an enlarged top plan view thereof, the bottom being a mirror image; and,

FIG. 4 is an enlarged front elevational view thereof, the undisclosed rear being plain and unornamented. 

The ornamental design for a towel rack, as shown and described. 